<template>
	<div class="login">
		<el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
			<div class="login-header">
				<h2>欢迎登录</h2>
				<h4>Welcome to login</h4>
			</div>
			<el-form-item prop="username">
				<el-input v-model="loginForm.username" type="text" auto-complete="off" placeholder="账号">
					<svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
				</el-input>
			</el-form-item>
			<el-form-item prop="password">
				<el-input v-model="loginForm.password" type="password" auto-complete="off" placeholder="密码" @keyup.enter.native="handleLogin">
					<svg-icon slot="prefix" icon-class="login-password" class="el-input__icon input-icon" />
				</el-input>
			</el-form-item>
			<el-form-item prop="code" v-if="captchaEnabled">
				<div class="login-code">
					<img :src="codeUrl" @click="getCode" />
				</div>
				<el-input v-model="loginForm.code" auto-complete="off" style="width: 63%" placeholder="验证码" @keyup.enter.native="handleLogin">
					<svg-icon slot="prefix" icon-class="login-verify" class="el-input__icon input-icon" />
				</el-input>
			</el-form-item>
			<el-checkbox v-model="loginForm.rememberMe" style="margin: 0px 0px 25px 0px">记住密码</el-checkbox>
			<el-form-item style="width: 100%">
				<el-button :loading="loading" size="medium" type="primary" class="login-button" @click.native.prevent="handleLogin">
					<span v-if="!loading">立即登录</span>
					<span v-else>登 录 中...</span>
				</el-button>
				<div style="float: right" v-if="register">
					<router-link class="link-type" :to="'/register'">立即注册</router-link>
				</div>
			</el-form-item>
		</el-form>
		<!--  底部  -->
		<div class="el-login-footer">
			<span>Copyright © 2018-2024 ruoyi.vip All Rights Reserved.</span>
		</div>
	</div>
</template>

<script>
import Cookies from 'js-cookie';
import { getCodeImg } from '@/api/login';
import { encrypt, decrypt } from '@/utils/jsencrypt';

export default {
	name: 'Login',
	data() {
		return {
			codeUrl: '',
			loginForm: {
				username: 'admin',
				password: 'admin123',
				rememberMe: false,
				code: '',
				uuid: ''
			},
			loginRules: {
				username: [{ required: true, trigger: 'blur', message: '请输入您的账号' }],
				password: [{ required: true, trigger: 'blur', message: '请输入您的密码' }],
				code: [{ required: true, trigger: 'change', message: '请输入验证码' }]
			},
			loading: false,
			// 验证码开关
			captchaEnabled: true,
			// 注册开关
			register: false,
			redirect: undefined
		};
	},
	watch: {
		$route: {
			handler: function (route) {
				this.redirect = route.query && route.query.redirect;
			},
			immediate: true
		}
	},
	created() {
		this.getCode();
		this.getCookie();
	},
	methods: {
		getCode() {
			getCodeImg().then((res) => {
				this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled;
				if (this.captchaEnabled) {
					this.codeUrl = 'data:image/gif;base64,' + res.img;
					this.loginForm.uuid = res.uuid;
				}
			});
		},
		getCookie() {
			const username = Cookies.get('username');
			const password = Cookies.get('password');
			const rememberMe = Cookies.get('rememberMe');
			this.loginForm = {
				username: username === undefined ? this.loginForm.username : username,
				password: password === undefined ? this.loginForm.password : decrypt(password),
				rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
			};
		},
		handleLogin() {
			this.$refs.loginForm.validate((valid) => {
				if (valid) {
					this.loading = true;
					if (this.loginForm.rememberMe) {
						Cookies.set('username', this.loginForm.username, { expires: 30 });
						Cookies.set('password', encrypt(this.loginForm.password), { expires: 30 });
						Cookies.set('rememberMe', this.loginForm.rememberMe, { expires: 30 });
					} else {
						Cookies.remove('username');
						Cookies.remove('password');
						Cookies.remove('rememberMe');
					}
					this.$store
						.dispatch('Login', this.loginForm)
						.then(() => {
							this.$router.push({ path: this.redirect || '/' }).catch(() => {});
						})
						.catch(() => {
							this.loading = false;
							if (this.captchaEnabled) {
								this.getCode();
							}
						});
				}
			});
		}
	}
};
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
	display: flex;
	align-items: center;
	height: 100%;
	background: url('../assets/images/login-background.jpg') no-repeat center;
	background-size: cover;
	position: relative;
}

.login-form {
	border-radius: 6px;
	border: solid 1px #fff;
	background-color: rgba(255, 255, 255, 0.4);
	width: 480px;
	margin-left: 50%;
	padding: 64px 64px 40px;
	.el-input {
		height: 48px;
		input {
			height: 48px;
			line-height: 46px;
			border-radius: 24px;
			font-size: 16px;
			padding: 0 24px 0 48px;
		}
	}
	.input-icon {
		width: 18px;
		height: 48px;
		margin-left: 12px;
	}
}
.login-header {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	margin-bottom: 24px;
	h2 {
		display: flex;
		align-items: center;
		font-size: 32px;
		font-weight: normal;
		color: #2c2b2b;
		margin: 0;
		&::before,
		&::after {
			display: block;
			width: 64px;
			height: 2px;
			font-size: 0;
			content: '';
			margin: 0 10px;
			background-color: #909399;
		}
	}
	h4 {
		font-size: 14px;
		margin: 10px 0 0;
		text-transform: uppercase;
		color: rgba(43, 43, 43, 0.6);
	}
}
.login-tip {
	font-size: 13px;
	text-align: center;
	color: #bfbfbf;
}
.login-code {
	float: right;
	width: 33%;
	height: 48px;
	overflow: hidden;
	border-radius: 24px;
	border: solid 1px #dcdfe6;
	img {
		width: calc(100% + 4px);
		height: calc(100% + 4px);
		margin: -2px 0 0 -2px;
		cursor: pointer;
		vertical-align: middle;
	}
}
.login-button {
	width: 100%;
	height: 48px;
	font-size: 24px;
	border-radius: 24px;
}
.el-login-footer {
	height: 40px;
	line-height: 40px;
	position: fixed;
	bottom: 0;
	width: 100%;
	text-align: center;
	color: #fff;
	font-family: Arial;
	font-size: 12px;
	letter-spacing: 1px;
}
</style>
